Top 80+ Solved Cardiovascular MCQ Questions Answer

a. increased total blood volume

b. increased venous tone

c. increased pumping action of skeletal muscle

d. increased negative intrathoracic pressure

e. increased intrapericardial pressure

a. aortic stenosis

b. anaemia

c. mitral insufficiency

d. tricuspid stenosis

e. normal flow in children

a. right atrial systole begins after left atrial systole

b. the pulmonary closes after the aortic in inspiration

c. right ventricular ejection starts after left ventricular ejection

d. right ventricular systole starts after left ventricular systole

e. right and left atrial systole are synchronous

a. is an example of hetermeric regulation

b. is an example of homomeric regulation

c. is explained by troponin / tropomyosin overlap

d. relates stroke volume to cardiac output

e. bears little relation to in vivo regulation of the heart

a. A

b. B

c. O

d. AB

e. ABO

a. increases calcium inflow to the SA node

b. decreases calcium inflow to the AV node

c. increases potassium outflow in the SA node

d. increases potassium outflow in the AV node

e. decreases potassium outflow in the SA node

a. defines a linear relationship between wall tension and force of contraction of cardiac muscle

b. is approximated by representing wall tension as preload and force of contraction as afterload

c. predicts greater force of contraction when filling pressure is decreased (eg during shock)

d. is explained by an increased availability of intracellular Ca2+

e. describes heterometric autoregulation